Numerical modelling of soil nails in loose fill slope under surcharge loading

摘要: Abstract A plane–strain numerical model has been developed to mimic a nailed loose fill slope under surcharge loading. The used back-analyse field test that was conducted examine the behaviour of soil nails in slopes Incremental elasto-plastic analyses coupled with pore water diffusion have performed study internal deformation, content redistribution soil, and performance during after application parameters describing mechanical hydraulic properties were obtained from or laboratory tests. Different modelling techniques boundary conditions for mimicking soil–nail interaction material examined. Comparisons between predictions measurements demonstrate new interfacial model, denoted as embedded bond–slip interface is more suitable behaviour. Despite simplicity predicted responses are close agreement results, particular mobilisation distribution nail forces response Both results suggest capable increasing overall stability loading considered this study. increase confining stress along near area central stabilising mechanism. On contrary, mobilised heads much smaller, indicating beneficial effect having structural grillage system at face limited range pressures